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Full-Text Articles in Medical Specialties

Improved Tumor Control Following Radiosensitization With Ultrasound-Sensitive Oxygen Microbubbles And Tumor Mitochondrial Respiration Inhibitors In A Preclinical Model Of Head And Neck Cancer, Quezia Lacerda, Hebah Falatah, Ji-Bin Liu, Corinne Wessner, Brian Oeffinger, Ankit K. Rochani, Dennis B. Leeper, Flemming Forsberg, Joseph M. Curry, Gagan Kaushal, Scott W Keith, Patrick O'Kane, Margaret A Wheatley, John R. Eisenbrey Apr 2023

Improved Tumor Control Following Radiosensitization With Ultrasound-Sensitive Oxygen Microbubbles And Tumor Mitochondrial Respiration Inhibitors In A Preclinical Model Of Head And Neck Cancer, Quezia Lacerda, Hebah Falatah, Ji-Bin Liu, Corinne Wessner, Brian Oeffinger, Ankit K. Rochani, Dennis B. Leeper, Flemming Forsberg, Joseph M. Curry, Gagan Kaushal, Scott W Keith, Patrick O'Kane, Margaret A Wheatley, John R. Eisenbrey

Department of Radiology Faculty Papers

Tumor hypoxia (oxygen deficiency) is a major contributor to radiotherapy resistance. Ultrasound-sensitive microbubbles containing oxygen have been explored as a mechanism for overcoming tumor hypoxia locally prior to radiotherapy. Previously, our group demonstrated the ability to encapsulate and deliver a pharmacological inhibitor of tumor mitochondrial respiration (lonidamine (LND)), which resulted in ultrasound-sensitive microbubbles loaded with O2 and LND providing prolonged oxygenation relative to oxygenated microbubbles alone. This follow-up study aimed to evaluate the therapeutic response to radiation following the administration of oxygen microbubbles combined with tumor mitochondrial respiration inhibitors in a head and neck squamous cell carcinoma (HNSCC) tumor model. …


Sarcopenia In Head And Neck Cancer: A Prognostic Analysis, Nedeljko Jovanovic Mar 2023

Sarcopenia In Head And Neck Cancer: A Prognostic Analysis, Nedeljko Jovanovic

Electronic Thesis and Dissertation Repository

Introduction: In head and neck cancer (HNC), loss of skeletal muscle mass (SMM), or sarcopenia, is a strong prognostic factor for outcomes. However, inconsistencies in its assessment limit our understanding of the relationship between sarcopenia and nutrition-related outcomes. This project evaluated the significance of sarcopenia as described in the literature and as demonstrated in a cohort of HNC patients.

Methods: A scoping review was first conducted followed by a retrospective cohort study with data collected from 194 oropharyngeal carcinoma patients treated with definitive radiation/chemoradiation. Sarcopenia was assessed from computed tomography (CT) imaging at the third cervical vertebra (C3) and the …